| CPC G02B 27/0176 (2013.01) [G02B 27/0172 (2013.01); G02B 2027/011 (2013.01); G02B 2027/0161 (2013.01); G02B 2027/0178 (2013.01)] | 11 Claims |
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1. An optical module comprising:
a display element configured to emit imaging light;
a first optical member including a first incident surface which the imaging light emitted from the display element is incident and a first emitting surface that emits the imaging light;
a second optical member including a second incident surface which the imaging light emitted from the emitting surface of the first optical member is directly incident, a second emitting surface that emits the imaging light, and a reflecting surface that reflects the imaging light to the second emitting surface from the second incident surface;
a third optical member on which the imaging light emitted from the second emitting surface of the second optical member is incident, the third optical member forming an exit pupil; and
an adhesive that joints the first optical member and the second optical member, wherein
the first optical member includes a first positioning portion that includes a first positioning surface, a second positioning surface, and a third positioning surface, the first positioning surface extending along a first direction and a second direction intersecting with the first direction, the second positioning surface extending along the second direction and a third direction intersecting with the first direction and the second direction, and the third positioning surface extending along the first direction and the third direction,
the first positioning portion is outer than the first incident surface and the first emitting surface in the first optical member,
the second optical member includes a second positioning portion that includes a fourth positioning surface, a fifth positioning surface, and a sixth positioning surface, the fourth positioning surface contacting with the first positioning surface of the first positioning portion of the first optical member, the fifth positioning surface contacting with the second positioning surface of the first positioning portion, of the first optical member and the sixth positioning surface contacting with the third positioning surface of the first positioning portion of the first optical member,
the second positioning portion is outer than the second incident surface, the second emitting surface, and the reflecting surface in the second optical member,
the first optical member includes a first fixing portion being opposite to the first positioning portion in the first optical member,
the first fixing portion of the first optical member includes a first abutting surface and a second abutting surface, the first abutting surface extending along the second direction and the third direction, and the second abutting surface extending along the first direction and the third direction,
the second optical member includes a second fixing portion being opposite to the second positioning portion in the second optical member,
the second fixing portion of the first optical member includes a third abutting surface and a fourth abutting surface, the third abutting surface contacting with the first abutting surface of the first fixing portion of the first optical member, and the fourth abutting surface contacting with the second abutting surface of the first fixing portion of the first optical member,
the first positioning portion includes a first portion that is in indirect contact with the second positioning portion via the adhesive, and a second portion that is in direct contact with the second positioning portion without the adhesive therebetween, and
the second fixing portion of the second optical member does not include a surface that is contacted with a surface of the first fixing portion of the first optical member extending along the first direction and the second direction.
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